Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2002-08-25
Phys.Lett. B558 (2003) 238-244
Physics
High Energy Physics
High Energy Physics - Theory
10 pages
Scientific paper
10.1016/S0370-2693(03)00278-8
In this paper we show that the worldline reparametrization for particles with higher derivative interactions appears as a higher dimensional symmetry, which is generated by the truncated Virasoro algebra. We also argue that for generic nonlocal particle theories the fields on the worldline may be promoted to those living on a two dimensional worldsheet, and the reparametrization symmetry becomes locally the same as the conformal symmetry.
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